Mac App Store-无法保存文件 [英] Mac App Store - can't save a file

问题描述

在Mac App Store上分发应用程序时，保存文件方面是否有任何限制？

Are there any restrictions as far as saving files when you distribute an app over the Mac App Store?

如果我从计算机上编译并运行应用程序，则可以正常运行很好-保存配置。

If I compile and run my app from my computer it works fine - it saves the configuration.

但是，通过Mac App Store下载的版本未保存配置。我什至看不到配置文件。有人知道发生了什么吗？

However the version that was downloaded over the Mac App Store is not saving the configuration. I don't even see the config file. Anyone knows what is going on?

这是保存配置的代码：

-(void)saveConfig:(id)plist {

    NSString *path = [[[NSBundle mainBundle] resourcePath] stringByAppendingString: CONFIG_FILE_NAME];

    NSData *xmlData;
    NSString *error;

    xmlData = [NSPropertyListSerialization dataFromPropertyList: plist
        format: NSPropertyListXMLFormat_v1_0
        errorDescription: &error];
    if(xmlData)
    {
        if (![xmlData writeToFile:path atomically:YES])
            NSLog(@"Failed to write the config file onto the hard drive");
    }
    else
    {
        NSLog(error);
    }
}

推荐答案

您如果您以Mac App Store为目标，则无法将文件写入应用程序捆绑目录。

You cannot write files to the application bundle directory if you’re targeting the Mac App Store. The bundle is supposed to be immutable.

请考虑使用 NSUserDefaults 保存您的配置，或者，如果您确实需要单独保存文件，官方推荐的位置是（〜）/图书馆/应用程序支持。马特·加拉格尔（Matt Gallagher）撰写了一篇不错的文章，名为查找或创建应用程序支持目录中，他提供了一种使用标准 NSApplicationSupportDirectory 后跟可执行文件名的解决方案。

Consider saving your configuration with NSUserDefaults or, if you truly need a separate file, the officially recommended location is (~)/Library/Application Support. Matt Gallagher wrote a nice post called Finding or creating the application support directory in which he provides a solution that uses standard NSApplicationSupportDirectory followed by the executable name.

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